Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS6391050 B1
Publication typeGrant
Application numberUS 09/515,180
Publication dateMay 21, 2002
Filing dateFeb 29, 2000
Priority dateFeb 29, 2000
Fee statusPaid
Also published asWO2001064134A1
Publication number09515180, 515180, US 6391050 B1, US 6391050B1, US-B1-6391050, US6391050 B1, US6391050B1
InventorsThomas E. Broome
Original AssigneeScimed Life Systems, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Self-expanding stent delivery system
US 6391050 B1
Abstract
A stent delivery catheter is provided with a retractable sheath operated by a pull wire in mechanical communication with the sheath. The pullwire is carried in a pullwire lumen and exits from the pullwire lumen through an axial slit in the distal end of the pullwire lumen. The length of the axial slit is at least equal to the length of the sheath to be retracted to expose the stent for deployment.
Images(6)
Previous page
Next page
Claims(24)
What is claimed is:
1. A stent delivery catheter comprising:
a guidewire lumen for receiving a guidewire therein;
a stent disposed about the distal end of the guidewire lumen;
a retractable sheath disposed about the distal end of the guidewire lumen, the sheath covering the stent;
a pullwire lumen for receiving a pullwire therein, the pullwire lumen having a proximal end, a distal end and a region between the proximal and distal ends, the pullwire lumen extending to the proximal end of the catheter, the pullwire lumen having an axial slit of a predetermined length therein;
a pullwire disposed in the pullwire lumen, wherein the distal end of the pullwire extends distally, exits the pullwire lumen through the slit and loops back proximally so as to be in mechanical communication with the retractable sheath.
2. The stent delivery catheter of claim 1 further comprising an inner lumen, the guidewire lumen carried within the inner lumen.
3. The stent delivery catheter of claim 2 wherein the inner lumen and the pullwire lumen are of a single piece construction in the form of a dual lumen tube.
4. The stent delivery catheter of claim 3 further comprising a bumper extending from the distal end of the inner tube.
5. The stent delivery catheter of claim 1 wherein the slit begins and terminates proximal to the distal end of the pullwire lumen.
6. The stent delivery catheter of claim 1 wherein the pullwire is attached to the retractable sheath.
7. The stent delivery catheter of claim 1 further comprising a pull collar, the pull collar attached to the proximal end of the retractable sheath, the pullwire attached to the pull collar.
8. The stent delivery catheter of claim 1 in a form selected from the group consisting of rapid exchange and over-the-wire.
9. A stent delivery catheter comprising:
a guidewire lumen for receiving a guidewire therein;
a stent disposed about the distal end of the guidewire lumen;
a retractable sheath disposed about the distal end of the guidewire lumen, the sheath covering the stent;
a pullwire lumen for receiving a pullwire therein, the pullwire lumen having a proximal end, a distal end and a region between the proximal and distal ends, the pullwire lumen extending to the proximal end of the catheter, the pullwire lumen having an axial slit of a predetermined length therein wherein the slit begins at the distal end of the pullwire lumen;
a pullwire disposed in the pullwire lumen, the distal end of the pullwire extending from the pullwire lumen through the slit and in mechanical communication with the retractable sheath.
10. The stent delivery catheter of claim 9, wherein the slit is at least as long as the stent.
11. The stent delivery catheter of claim 10 wherein the slit is longer than the stent.
12. The stent delivery catheter of claim 11 wherein the length of the slit is approximately equal to the length of that portion of the sheath which begins at the proximal end of the stent and terminates at the distal end of the sheath.
13. A stent delivery catheter comprising:
a guidewire lumen for receiving a guidewire therein;
a stent disposed about the distal end of the guidewire lumen;
a retractable sheath disposed about the distal end of the guidewire lumen, the sheath covering the stent;
a pullwire lumen for receiving a pullwire therein, the pullwire lumen having a proximal end, a distal end and a region between the proximal and distal ends, the pullwire lumen extending to the proximal end of the catheter, the pullwire lumen having an axial slit of a predetermined length therein;
a pullwire disposed in the pullwire lumen, the distal end of the pullwire extending from the pullwire lumen through the slit and in mechanical communication with the retractable sheath;
an inner tube, the guidewire lumen disposed in the inner tube and wherein the inner tube and the pullwire lumen are of a single piece construction in the form of a dual lumen tube, and the slit begins at the distal end of the pullwire lumen, the length of the slit approximately equal to the length of that portion of the sheath which begins at the proximal end of the stent and terminates at the distal end of the sheath.
14. A medical device delivery catheter comprising:
an inner tube, a portion of the distal end of the inner tube having a medical device bearing region,
a retractable sheath disposed about the medical device bearing region of the inner tube,
a pullwire lumen for carrying a pullwire therein, the pullwire lumen extending to the proximal end of the catheter, a portion of the pullwire lumen having an axial slit therein,
a pullwire disposed in the pullwire lumen, the distal end of the pullwire extends distally and exits the pullwire lumen through the slit and loops back proximally so as to be in mechanical communication with the retractable sheath,
a pullwire disposed in the pullwire lumen, wherein the distal end of the pullwire extends distally, exits the pullwire lumen through the slit and loops back proximally so as to be in mechanical communication with the retractable sheath.
15. The medical device delivery catheter of claim 14 further comprising a medical device disposed about the medical device bearing region of the inner tube.
16. The medical device delivery catheter of claim 15, wherein the medical device is selected from the group consisting of stents, stent-grafts, grafts and vena cava filters.
17. The medical device delivery catheter of claim 14 wherein the inner tube terminates distal to the distal end of the pullwire lumen.
18. The medical device delivery catheter of claim 14, in a form selected from the group consisting of rapid exchange, over-the-wire and fixed wire.
19. A medical device delivery catheter comprising:
an inner tube, a portion of the distal end of the inner tube having a medical device bearing region,
a retractable sheath disposed about the medical device bearing region of the inner tube,
a pullwire lumen for carrying a pullwire therein, the pullwire lumen extending to the proximal end of the catheter, a portion of the pullwire lumen having an axial slit therein,
a pullwire disposed in the pullwire lumen, the distal end of the pullwire loops back in a proximal direction after exiting the pullwire lumen through the slit, the pullwire in mechanical communication with the retractable sheath.
20. A medical device delivery catheter comprising:
an inner tube, a portion of the distal end of the inner tube having a medical device bearing region,
a retractable sheath disposed about the medical device bearing region of the inner tube,
a pullwire lumen for carrying a pullwire therein, the pullwire lumen extending to the proximal end of the catheter, a portion of the pullwire lumen having an axial slit therein, wherein the slit is longer than the medical device,
a pullwire disposed in the pullwire lumen, the distal end of the pullwire exiting the pullwire lumen through the slit, the pullwire in mechanical communication with the retractable sheath,
a medical device disposed about the medical device bearing region of the inner tube.
21. A medical device delivery catheter comprising:
an inner tube, a portion of the distal end of the inner tube having a medical device bearing region,
a retractable sheath disposed about the medical device bearing region of the inner tube,
a pullwire lumen for carrying a pullwire therein, the pullwire lumen extending to the proximal end of the catheter, a portion of the pullwire lumen having an axial slit therein, wherein the length of the slit is approximately equal to the length of that portion of the sheath which begins at the proximal end of the stent and terminates at the distal end of the sheath,
a pullwire disposed in the pullwire lumen, the distal end of the pullwire exiting the pullwire lumen through the slit, the pullwire in mechanical communication with the retractable sheath,
a medical device disposed about the medical device bearing region of the inner tube.
22. The medical device delivery catheter of claim 21, further comprising a manifold and a pullwire retraction mechanism arranged at the proximal end of the pullwire lumen.
23. The medical device delivery catheter of claim 21 wherein the inner tube extends to the manifold.
24. The medical device delivery catheter of claim 21 wherein the pullwire lumen and inner tube are of a single piece construction in the form of a dual lumen tube, the catheter further comprising a manifold and a pullwire retraction mechanism arranged at the proximal end of the catheter in mechanical communication with the pullwire and an outer tube extending distally from the manifold, the distal end of the outer tube affixed to a proximal end of the dual lumen tube.
Description
BACKGROUND OF THE INVENTION

In typical PTCA procedures, a guiding catheter is percutaneously introduced into the cardiovascular system of a patient and advanced through the aorta until the distal end is in the ostium of the desired coronary artery. Using fluoroscopy, a guide wire is then advanced through the guiding catheter and across the site to be treated in the coronary artery. An over the wire (OTW) balloon catheter is advanced over the guide wire to the treatment site. The balloon is then expanded to reopen the artery. The OTW catheter may have a guide wire lumen which is as long as the catheter or it may be a rapid exchange catheter wherein the guide wire lumen is substantially shorter than the catheter. Alternatively, a fixed wire balloon may be used. This device features a guide wire which is affixed to the catheter and cannot be removed.

To help prevent arterial closure, repair dissection, or prevent restenosis, a physician can implant an intravascular prosthesis, or a stent, for maintaining vascular patency inside the artery at the lesion. The stent may either be a self-expanding stent or a balloon expandable stent. For the latter type, the stent is often delivered on a balloon and the balloon is used to expand the stent. The self-expanding stents may be made of shape memory materials such as Nitinol or constructed of regular metals but of a design which exhibits self expansion characteristics.

An exemplary stent delivery catheter is disclosed in commonly assigned U.S. Pat. No. 5,772,669 to Vrba. The Vrba catheter has a retractable distal sheath concentrically arranged around a stent and a pull back means operatively connected to the distal sheath. The catheter is constructed and arranged such that at least the proximal end portion of the retractable sheath is received inside an outer body portion of the catheter on retraction of the sheath. In retracting the sheath, a length of sheath in excess of the length of the stent is moved. In the process of retracting the sheath, there is typically a frictional interaction between the sheath and the vessel wall.

In a catheter having a full length sheath, the frictional interaction between the sheath and the vessel wall may become more significant, possible resulting in motion of the distal end of the catheter relative to the vessel wall which, in turn, may result in decreased accuracy in the deployment of a stent.

For the purpose of this disclosure, all US patents and patent applications and all other publications referenced herein are incorporated herein by reference in their entirety.

BRIEF SUMMARY OF THE INVENTION

It is desirable to provide a medical device deployment catheter having improved deployment accuracy. Such a device may be provided in the form of a catheter in which the length of those portions of the catheter which are in contact with a vessel and which move on deployment of the medical device are of reduced length.

To that end, the present invention in one embodiment is directed to a stent delivery catheter comprising a guidewire lumen for receiving a guidewire therein. A stent is disposed about the distal end of the guidewire lumen and is covered by a retractable sheath disposed about the distal end of the guidewire lumen. The retractable sheath may be retracted by pulling on a pullwire in mechanical communication with the retractable sheath. The pullwire is disposed within a pullwire lumen. A slit of a predetermined length is provided in the pullwire lumen to allow for egress of the pullwire. The distal end of the pullwire extends from the pullwire lumen at the slit.

In another embodiment, the invention is directed to a medical device delivery catheter which comprises an inner tube with a medical device bearing region at the distal end. A retractable sheath is disposed about the medical device bearing region of the inner tube. The retractable sheath is controlled by a pullwire which is in mechanical communication with the retractable sheath. The pullwire extends proximally therefrom and is carried in a pullwire lumen. A slit is provided in the pullwire lumen for egress of the pullwire therefrom. The length of the slit exceeds the length of the medical device to be delivered. Desirably, the length of the stent will be approximately equal to the length of that portion of the retractable sheath which extends from the proximal end of medical device bearing region of the catheter and terminates at the distal end of sheath.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)

FIG. 1 shows a side elevational view of an inventive catheter with the distal end shown in cross-sectional view.

FIG. 2a shows a transverse cross-sectional view of the catheter of FIG. 1 taken along line 2 a— 2 a.

FIG. 2b shows a perspective view of the dual lumen with an axial slit in the pullwire lumen.

FIG. 3 shows the catheter of FIG. 1 with the sheath fully retracted.

FIG. 4 shows a cross-sectional view of the distal end of an inventive catheter configured for use as a rapid exchange catheter.

FIG. 5 shows a cross-sectional view of the distal end of an inventive catheter.

FIG. 6a shows a cross-sectional view of the distal end of an inventive catheter configured for use as a fixed wire catheter.

FIG. 6b is a transverse cross-sectional view of the catheter of FIG. 6a taken along line 6 b— 6 b.

FIG. 6c is a transverse cross-sectional view of a catheter similar to that shown FIG. 6a with an inflation lumen external to the guidewire lumen.

FIG. 7 shows a suitable manifold for use with the inventive catheters.

FIG. 8 shows a retraction mechanism suitable for use with the inventive catheter.

FIG. 9 shows a manifold suitable for use with the inventive catheter.

DETAILED DESCRIPTION OF THE INVENTION

While this invention may be embodied in many different forms, there are described in detail herein specific preferred embodiments of the invention. This description is an exemplification of the principles of the invention and is not intended to limit the invention to the particular embodiments illustrated.

The inventive catheters are intended for use in delivering deployable medical devices to a desired location in the body. Desirably, the medical devices are of the radially expandable tubular type. Particularly suitable radially expandable tubular medical devices for use with the inventive catheter include stents, stent-grafts, grafts, vena cava filters and other intraluminal and interluminal prostheses. The devices may be self-expanding or mechanically expandable via balloons or other expansion devices. For the sake of brevity, the term ‘stent ’ as used henceforth, shall be understood to refer to all such radially expandable tubular medical devices.

The inventive medical device delivery catheter in general and stent delivery catheter in particular, may be used for performing one or more intraluminal procedures on a patient as part of a therapeutic treatment. By “intraluminal,” it is meant that the procedures occur at a target site within a body lumen. Typically, the procedure will occur within a portion of the patient vasculature such as, for example, the arterial system. More particularly, the inventive catheter will find use in the coronary arteries, the peripheral arteries and the cerebral arteries. The catheters of the present invention, however, are not limited to use in the vascular system and may also be advantageously employed in other body structures, including the prostate via the prostatic urethra, (e.g., to treat benign prostatic hypertrophy (BPH), or adenocarcinoma), the fallopian tube via its lumen (to treat strictures), brain parenchyma (to treat Parkinson's disease), and the like.

An over-the-wire embodiment of the inventive medical device delivery catheter is shown generally at 100 in FIG. 1.

Catheter 100 comprises an outer tube 102 which extends from the proximal end of the catheter. This outer tube 102 is characterized by a flexible tube which contains room for a pullwire and a guidewire lumen. Preferably, outer tube 102 is comprised of a polyimide and stainless steel ribbon composite material. Details of such an outer tube structure may be found, inter alia, in U.S. Pat. No. 5,772,669. Guidewire lumen 104 is disposed within outer tube 102 and carries guidewire 106 within.

The distal end of outer tube 102 is affixed to dual lumen tube 120 adhesively or through any other suitable means. The distal end of the outer tube is of larger outer diameter than the proximal end of dual lumen tube 120 allowing the proximal end of dual lumen tube 120 to fit inside the distal end of outer tube 102 for connection therebetween. The diameter of the proximal end of dual lumen tube 120 may also be larger than the diameter of outer tube 102 and the dual lumen tube fit over the outer tube.

Dual lumen tube 120, shown in transverse cross-section in FIG. 2a, includes an inner lumen 124 and a pullwire lumen 128. Guidewire lumen 104 is disposed within inner lumen 124. The guidewire may alternatively be carried directly in inner lumen 124 absent the guidewire lumen.

The distal end of guidewire lumen 104 extends distally from dual lumen tube 120 and has a medical device bearing region 108 about which a medical device, such as self-expanding stent 112, may be disposed. A retractable sheath 116 covers medical device bearing region 108.

Disposed within pullwire lumen 128 in dual lumen tube 120 is pullwire 132. Pullwire 132 exits pullwire lumen 128 at axial slit 136 in pullwire lumen 128. FIG. 2b shows a perspective view of dual lumen 120 highlighting slit 136. The length of slit 136 is sized to be approximately equal to the length of that portion of sheath 116 which begins at the proximal end of medical device bearing region 108 and terminates at the distal end of sheath 116. Slit 136 begins at the distal end of the pullwire lumen and extends proximally. At minimum, slit 136 must be long enough to allow for retraction of sheath 116 from over the medical device. Slit 136 may be as long as the retractable sheath or longer.

Pullwire 132 is welded, or otherwise attached, to pull collar 146 at point 148. Pull collar 146, in turn, is joined to retractable sheath 116 adhesively or otherwise. Desirably, pull collar 146 is slidably sealed to the exterior of dual lumen 120. The slidable seal may be accomplished in a variety of ways, as known in the art. Additional details on slidable seals may be found, inter alia, in U.S. Pat. No. 5,772,669 to Vrba et al. The sliding seal provides a leak-free seal between the pull collar and the dual lumen tube, thereby facilitating prepping of the catheter.

Pullwire 132 may, alternatively, be directly attached to retractable sheath 116 or otherwise in mechanical communication with sheath 116.

As shown in FIGS. 1 and 3, pullwire 132 extends slightly beyond its point of attachment 148 to pull collar 146 and loops back in the proximal direction. The catheter is shown with the sheath fully retracted in FIG. 3. The inventive catheters may also be constructed such that the pullwire extends entirely in the distal direction.

The inventive catheter may also be provided in an embodiment in which the dual lumen tube extends to the proximal end of the catheter. In such an embodiment, the presence of the outer tube is not necessary.

A rapid exchange embodiment of the medical device delivery catheter is shown generally at 100 in FIG. 4. The catheter of FIG. 4 is similar to the catheter shown in FIG. 1, differing in that dual lumen tube 120 does not extend all the way to the proximal end of the catheter. Inner lumen 124 terminates in guidewire port 126 distal to the proximal end of catheter 100. Guidewire 106 enters inner lumen 124 through guidewire port 126.

A fixed wire embodiment of the medical device delivery catheter is shown generally at 100 in FIG. 5. The catheter of FIG. 5 is similar to the catheter shown in FIG. 1, differing in that the dual lumen tube has been replaced by a single lumen 128 which serves as the pullwire lumen. The catheter further comprises an elongate shaft 104 which includes a medical device receiving region 108 about which a medical device such as stent 112 may be disposed. Tubular appendage 124 extends from shaft 104 and is similar to a guidewire lumen. Tubular appendage 124 may be of solid construction or hollow. The invention also contemplates providing a shaft or support separate from the pullwire lumen for receiving the medical device thereon. A wire 146 extends distally from the distal end of appendage 124.

The instant invention is also directed to catheters for balloon expandable medical devices such as balloon expandable stents. The catheter shown in FIG. 6a and in transverse cross-section in FIG. 6b, is similar to that shown in FIG. 1 and further comprises a medical balloon 150 disposed between stent 112 and medical device bearing region 108 of guidewire lumen 104. Medical balloon 150 is in fluid communication with an inflation lumen 123 which extends along shaft 104 and terminates in inflation lumen opening 125. The inflation lumen extends to the proximal end of the catheter. Inflation lumen 123 may be provided as a separate lumen. An example of such a configuration in which the inflation lumen is external to the guidewire lumen is shown in transverse cross-sectional view in FIG. 6c. The pullwire lumen may also be provided with a valve at the distal end to serve as an inflation lumen.

The rapid exchange and fixed-wire embodiments of the inventive catheter may also be similarly modified for use with a balloon expandable stent by providing a balloon and inflation lumen.

The inventive catheters may further comprise marker bands 158, desirably radiopaque, to facilitate positioning of the stent. The use of such marker bands is disclosed, inter alia, in U.S. Pat. No. 5,772,669. Other portions of the catheter may also have marker bands, as known in the art, to facilitate positioning of the catheter in the body.

The inventive catheters may further comprise one or more bumpers 160 adjacent to the stent or other medical device to be deployed. Bumper 160 may be of polyethylene and is affixed to guide wire lumen 104 by adhesive so as to prevent movement of stent 112 in a proximal direction when sheath 116 is retracted.

All of the inventive catheters further include a suitable manifold 162 at the proximal end of the device. A particularly suitable manifold for an over-the-wire version of the catheter is shown in greater detail in FIG. 7. Manifold 162 includes a guidewire port 166 through which a guidewire may be inserted into the guidewire lumen and a flush port 170 through which a suitable flushing fluid may be injected into the guidewire lumen. Extending from flush port 170 is a flush lumen 174 which is in fluid communication with guidewire lumen 104. Guidewire lumen 104 and flush lumen 174 may be welded together or otherwise suitably joined together. Additional details of the manifold construction may be found in copending, commonly assigned U.S. application Ser. No. 08/753,641.

The rapid exchange and fixed wire embodiments of the inventive catheters may also employ a manifold similar to that shown in FIGS. 8 or 9 with suitable modifications or any other suitable manifold as known in the art.

Pullwire 132 is retracted using a suitable pullwire retraction mechanism arranged at the proximal ends of the pullwire lumen. One such suitable retraction mechanism is the ratchet mechanism such as that shown in FIG. 8. Trigger 178 is in mechanical communication with pullwire 132 via a ratchet mechanism, shown generally at 182. Pumping of trigger 178 results in proximal motion of pullwire 132 and retraction of sheath 116. Further details of the construction of the trigger mechanism may be found in copending, commonly assigned U.S. application Ser. No. 08/753,641. The pullwire may also be retracted using a retraction mechanism such as that shown in FIG. 1. Pullwire 132 is attached to slide 182 and may be moved proximally by moving slide 182 in a proximal direction. Such a manifold has been disclosed in U.S. Pat. No. 5,772,669 and elsewhere.

Pullwire 132 may also be retracted using any other suitable mechanisms as known in the art.

Another suitable manifold is shown in FIG. 9. Manifold 162 includes a guidewire lumen port 166. The pullwire is in mechanical communication with slide mechanism 182. An optional safety lock 184 may be used to prevent any unwanted movement of the slide mechanism.

Other suitable manifolds may also be used.

The inventive catheters may be further provided with an optional disposable cover disposed about the exterior of the catheter to provide leak-free prepping of the catheter.

The various portions of the catheter may be made of standard catheter materials as are known in the art. Dual lumen may be made of any suitable material such as, for example, high density polyethylene (HDPE). The guidewire lumen is desirably made of COBRAID® or similar materials such as disclosed in commonly assigned, copending U.S. application Ser. No. 09/033,724. Other suitable material known in the art may also be used in place of the COBRAID®. Any suitable guidewire may be used in conjunction with the invention. Suitable materials for the pull collar are disclosed in U.S. Pat. No. 5,772,669 as well as elsewhere.

Suitable balloon materials for use with those embodiments having a balloon are well known in the art and are described, inter alia, in U.S. Pat. No. 5,807,520 as well as in the references disclosed therein.

The various components of the inventive catheters may also be provided with suitable coatings as are known in the art. U.S. Pat. No. 5,443,907, and U.S. application Ser. Nos. 08/382,478, 09/306,939 and 09/316,502, for example, discloses suitable lubricious coatings for the interiors of various tubes commonly found in catheters.

The invention is also directed to methods of deploying a medical device such as a stent using an inventive catheter. A portion of the catheter is inserted into a bodily lumen and advanced to a desired bodily location. Where radiopaque marker bands are provided on the catheter, the location of the medical device bearing region of the catheter may be monitored via a suitable technique such as fluoroscopy. When the medical device is positioned at the desired bodily location, the pullwire is pulled in a proximal direction thereby retracting the sheath and exposing the medical device for deployment. In the case of a self-expanding stent, the stent will expand on retraction of the sheath. In the case of a balloon expandable stent, an inflation fluid is supplied to the balloon and the balloon expanded, thereby expanding the stent. The catheter may then be removed from the body with the stent left in place in the body.

In addition to the specific embodiments claimed below, the invention is also directed to other embodiments having any other possible combination of the dependent features claimed below.

The above disclosure is intended to be illustrative and not exhaustive. This description will suggest many variations and alternatives to one of ordinary skill in this art. All these alternatives and variations are intended to be included within the scope of the attached claims. Those familiar with the art may recognize other equivalents to the specific embodiments described herein which equivalents are also intended to be encompassed by the claims attached hereto.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US5443907Dec 7, 1994Aug 22, 1995Scimed Life Systems, Inc.Coating for medical insertion guides
US5534007 *May 18, 1995Jul 9, 1996Scimed Life Systems, Inc.Stent deployment catheter with collapsible sheath
US5690644 *Feb 20, 1996Nov 25, 1997Schneider (Usa) Inc.Apparatus for deploying body implantable stent
US5772669 *Sep 27, 1996Jun 30, 1998Scimed Life Systems, Inc.Stent deployment catheter with retractable sheath
US5782855 *Apr 10, 1996Jul 21, 1998Advanced Cardiovascular Systems, Inc.Stent delivery system
US5807520Oct 20, 1997Sep 15, 1998Scimed Life Systems, Inc.Method of balloon formation by cold drawing/necking
US5891154May 6, 1997Apr 6, 1999Advanced Cardiovascular System, Inc.Passive perfusion stent delivery system
US5968052Nov 27, 1996Oct 19, 1999Scimed Life Systems Inc.Pull back stent delivery system with pistol grip retraction handle
US5968069 *Aug 22, 1997Oct 19, 1999Scimed Life Systems, Inc.Stent delivery system having stent securement apparatus
US6017577Feb 1, 1995Jan 25, 2000Schneider (Usa) Inc.Slippery, tenaciously adhering hydrophilic polyurethane hydrogel coatings, coated polymer substrate materials, and coated medical devices
US6042588 *Mar 3, 1998Mar 28, 2000Scimed Life Systems, IncStent delivery system
US6120522 *Aug 27, 1998Sep 19, 2000Scimed Life Systems, Inc.Self-expanding stent delivery catheter
WO1997026936A1Jan 28, 1997Jul 31, 1997Endogad Research Pty. LimitedDirectional catheter
WO1997048343A1Jun 20, 1997Dec 24, 1997Localmed, Inc.System and method for delivering helical stents
WO1998020812A1Nov 14, 1997May 22, 1998Cook IncorporatedSplittable sleeve, stent deployment device
WO1998023241A2Nov 12, 1997Jun 4, 1998Scimed Life Systems, Inc.Pull back stent delivery system with pistol grip retraction handle
WO1998052496A1May 19, 1998Nov 26, 1998Biocompatibles LimitedStent deployment device
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6755854 *Jul 31, 2001Jun 29, 2004Advanced Cardiovascular Systems, Inc.Control device and mechanism for deploying a self-expanding medical device
US6802846Feb 12, 2002Oct 12, 2004Ams Research CorporationForeign body retrieval device and method
US6830575May 8, 2002Dec 14, 2004Scimed Life Systems, Inc.Method and device for providing full protection to a stent
US6884259Aug 27, 2003Apr 26, 2005Boston Scientific Scimed, Inc.Multi-length delivery system
US6902575 *Dec 18, 2001Jun 7, 2005Linvatec Biomaterials, Inc.Stent delivery apparatus and method
US7285130 *Apr 27, 2004Oct 23, 2007Boston Scientific Scimed, Inc.Stent delivery system
US7367989Feb 27, 2003May 6, 2008Scimed Life Systems, Inc.Rotating balloon expandable sheath bifurcation delivery
US7470282Jun 30, 2003Dec 30, 2008Boston Scientific Scimed, Inc.Stent grip and system for use therewith
US7473271Apr 11, 2003Jan 6, 2009Boston Scientific Scimed, Inc.Stent delivery system with securement and deployment accuracy
US7485139Oct 10, 2002Feb 3, 2009Ciamacco Jr SamStent delivery and deployment system
US7651521Nov 18, 2004Jan 26, 2010Cardiomind, Inc.Corewire actuated delivery system with fixed distal stent-carrying extension
US7686841Dec 29, 2003Mar 30, 2010Boston Scientific Scimed, Inc.Rotating balloon expandable sheath bifurcation delivery system
US7691138Dec 14, 2004Apr 6, 2010Boston Scientific Scimed, Inc.Method and device for providing full protection to a stent
US7699884Mar 22, 2006Apr 20, 2010Cardiomind, Inc.Method of stenting with minimal diameter guided delivery systems
US7717930 *Feb 28, 2005May 18, 2010Cook IncorporatedValvulotome with a cutting edge
US7740652Mar 30, 2005Jun 22, 2010Boston Scientific Scimed, Inc.Catheter
US7744619Feb 24, 2004Jun 29, 2010Boston Scientific Scimed, Inc.Rotatable catheter assembly
US7758625Sep 12, 2003Jul 20, 2010Abbott Vascular Solutions Inc.Delivery system for medical devices
US7771463Nov 2, 2005Aug 10, 2010Ton Dai TTwist-down implant delivery technologies
US7780693 *Jun 27, 2002Aug 24, 2010Salviac LimitedCatheter
US7785361Mar 23, 2004Aug 31, 2010Julian NikolchevImplant delivery technologies
US7862602Dec 20, 2005Jan 4, 2011Biosensors International Group, LtdIndirect-release electrolytic implant delivery systems
US7922740Aug 10, 2004Apr 12, 2011Boston Scientific Scimed, Inc.Rotatable catheter assembly
US7922753Jan 13, 2004Apr 12, 2011Boston Scientific Scimed, Inc.Bifurcated stent delivery system
US7935141Aug 16, 2006May 3, 2011C. R. Bard, Inc.Variable speed stent delivery system
US7967837Jun 27, 2002Jun 28, 2011Salviac LimitedCatheter
US7976574Aug 8, 2008Jul 12, 2011Advanced Cardiovascular Systems, Inc.Delivery system with variable delivery rate for deploying a medical device
US7981148Jan 30, 2008Jul 19, 2011Boston Scientific Scimed, Inc.Stent delivery catheter
US7993384Sep 22, 2004Aug 9, 2011Abbott Cardiovascular Systems Inc.Delivery system for medical devices
US8012192Feb 18, 2004Sep 6, 2011Boston Scientific Scimed, Inc.Multi-stent delivery system
US8016869Dec 24, 2003Sep 13, 2011Biosensors International Group, Ltd.Guidewire-less stent delivery methods
US8025692Oct 2, 2002Sep 27, 2011Angiomed Gmbh & Co. Medizintechnik KgStent delivery system
US8062344Dec 17, 2009Nov 22, 2011Angiomed Gmbh & Co. Medizintechnik KgVariable speed self-expanding stent delivery system and luer locking connector
US8066755Sep 26, 2007Nov 29, 2011Trivascular, Inc.System and method of pivoted stent deployment
US8075606Jul 4, 2002Dec 13, 2011Angiomed Gmbh & Co. Medizintechnik KgDelivery system having a rapid pusher assembly for self-expanding stent, and stent exchange configuration
US8075607Dec 27, 2007Dec 13, 2011Cook Medical Technologies LlcControl handle
US8083789Nov 16, 2007Dec 27, 2011Trivascular, Inc.Securement assembly and method for expandable endovascular device
US8133199Aug 27, 2008Mar 13, 2012Boston Scientific Scimed, Inc.Electroactive polymer activation system for a medical device
US8172891Dec 19, 2008May 8, 2012Boston Scientific Scimed, Inc.Stent grip and systems for use therewith
US8226701Sep 26, 2007Jul 24, 2012Trivascular, Inc.Stent and delivery system for deployment thereof
US8231667May 9, 2005Jul 31, 2012Jacques SéguinEndoprosthesis for vascular bifurcation
US8236041Oct 29, 2004Aug 7, 2012Biosensors International Group, Ltd.Noncylindrical stent deployment system for treating vascular bifurcations
US8241346Sep 27, 2011Aug 14, 2012Trivascular, Inc.Endovascular graft and method of delivery
US8273116Nov 30, 2010Sep 25, 2012Biosensors International Group, Ltd.Indirect-release electrolytic implant delivery systems
US8328861Nov 16, 2007Dec 11, 2012Trivascular, Inc.Delivery system and method for bifurcated graft
US8333003May 19, 2008Dec 18, 2012Boston Scientific Scimed, Inc.Bifurcation stent crimping systems and methods
US8333784Apr 12, 2010Dec 18, 2012Boston Scientific Scimed, Inc.Rotatable catheter assembly
US8398663May 17, 2010Mar 19, 2013Cook Medical Technologies LlcValvulotome device and method
US8475515Mar 24, 2010Jul 2, 2013Angiomed GmbH & Co., Medizinitechnik KGTrans-luminal surgical device
US8500789Jul 10, 2008Aug 6, 2013C. R. Bard, Inc.Device for catheter sheath retraction
US8568467Jan 15, 2004Oct 29, 2013Angiomed Gmbh & Co. Medizintechnik KgTrans-luminal surgical device
US8579954Jan 27, 2006Nov 12, 2013Biosensors International Group, Ltd.Untwisting restraint implant delivery system
US8603157Jun 22, 2007Dec 10, 2013Biosensors International Group, Ltd.Endoprosthesis deployment methods for treating vascular bifurcations
US8641748Jan 19, 2006Feb 4, 2014Bay Street Medical, Inc.Guidewire loaded stent for delivery through a catheter
US8657870Jun 26, 2009Feb 25, 2014Biosensors International Group, Ltd.Implant delivery apparatus and methods with electrolytic release
US8663309Sep 26, 2007Mar 4, 2014Trivascular, Inc.Asymmetric stent apparatus and method
US8685076Jun 22, 2010Apr 1, 2014Boston Scientific Scimed, Inc.Catheter
US8696728Aug 31, 2007Apr 15, 2014Bay Street Medical, Inc.Guidewire loaded stent for delivery through a catheter
US8728143Nov 11, 2002May 20, 2014Biosensors International Group, Ltd.Endoprosthesis deployment system for treating vascular bifurcations
US8784468Sep 23, 2011Jul 22, 2014Boston Scientific Scimed, Inc.Stent delivery systems and locking members for use with stent delivery systems
US8784472Aug 15, 2003Jul 22, 2014Boston Scientific Scimed, Inc.Clutch driven stent delivery system
US8808346Jan 12, 2007Aug 19, 2014C. R. Bard, Inc.Stent delivery system
US8864814Sep 27, 2011Oct 21, 2014Trivascular, Inc.Method of delivering advanced endovascular graft and system
US8864817Jul 9, 2012Oct 21, 2014Jacques SéguinEndoprosthesis for vascular bifurcation
US8900285Jan 27, 2006Dec 2, 2014Biosensors International Group, Ltd.Covering electrolytic restraint implant delivery systems
US8932342Jul 27, 2011Jan 13, 2015Cook Medical Technologies LlcControlled release and recapture prosthetic deployment device
US8968379 *Sep 2, 2005Mar 3, 2015Medtronic Vascular, Inc.Stent delivery system with multiple evenly spaced pullwires
US8974509Jan 27, 2006Mar 10, 2015Biosensors International Group, Ltd.Pass-through restraint electrolytic implant delivery systems
US8992595Mar 13, 2013Mar 31, 2015Trivascular, Inc.Durable stent graft with tapered struts and stable delivery methods and devices
US9066826Apr 7, 2005Jun 30, 2015Boston Scientific Scimed, Inc.Medical device delivery systems
US9078779Aug 7, 2007Jul 14, 2015C. R. Bard, Inc.Hand-held actuator device
US9084692Nov 17, 2011Jul 21, 2015Boston Scientific Scimed, Inc.Stent delivery system
US9101501Mar 30, 2010Aug 11, 2015Biosensors International Group, Ltd.Bifurcation stent and method of positioning in a body lumen
US9107771 *Apr 7, 2010Aug 18, 2015C.R. Bard, Inc.Delivery system for a prosthesis
US9114038Aug 31, 2007Aug 25, 2015Back Bay Medical Inc.Method of delivering a stent
US9131959Aug 22, 2011Sep 15, 2015Cook Medical Technologies LlcSplittable dilator delivery system
US9144508Nov 30, 2007Sep 29, 2015Back Bay Medical Inc.Radially expandable stent
US9149379Jul 16, 2007Oct 6, 2015Cook Medical Technologies LlcDelivery device
US9186482 *Nov 12, 2008Nov 17, 2015C. R. Bard, Inc.Elongate medical device
US9192500Jun 22, 2015Nov 24, 2015Intact Vascular, Inc.Delivery device and method of delivery
US9220619Sep 22, 2011Dec 29, 2015Boston Scientific Scimed, Inc.Stent delivery system
US9220620Nov 5, 2012Dec 29, 2015Cook Medical Technologies LlcEndoluminal prosthesis introducer
US9254213Dec 20, 2004Feb 9, 2016Rubicon Medical, Inc.Stent delivery device
US9308108Feb 14, 2014Apr 12, 2016Cook Medical Technologies LlcControlled release and recapture stent-deployment device
US9314356Jan 28, 2011Apr 19, 2016Cook Medical Technologies LlcMechanically expandable delivery and dilation systems
US9320632Nov 6, 2015Apr 26, 2016Intact Vascular, Inc.Delivery device and method of delivery
US9345603Nov 6, 2015May 24, 2016Intact Vascular, Inc.Delivery device and method of delivery
US9351860Mar 14, 2013May 31, 2016Cook Medical Technologies LlcLoading tool for capturing stent points
US9375336Mar 12, 2015Jun 28, 2016Intact Vascular, Inc.Delivery device and method of delivery
US9375337Oct 16, 2015Jun 28, 2016Intact Vascular, Inc.Delivery device and method of delivery
US9393141Mar 24, 2014Jul 19, 2016Boston Scientific Scimed, Inc.Catheter
US9421115Aug 2, 2013Aug 23, 2016C. R. Bard, Inc.Device for catheter sheath retraction
US9433520Jan 19, 2016Sep 6, 2016Intact Vascular, Inc.Delivery device and method of delivery
US9445929Nov 6, 2015Sep 20, 2016Intact Vascular, Inc.Delivery device and method of delivery
US9456914Jan 29, 2016Oct 4, 2016Intact Vascular, Inc.Delivery device and method of delivery
US9498363Mar 15, 2013Nov 22, 2016Trivascular, Inc.Delivery catheter for endovascular device
US9545309Nov 18, 2015Jan 17, 2017St. Jude Medical, Cardiology Divisions, Inc.Repositioning of prosthetic heart valve and deployment
US20030093106 *Jun 27, 2002May 15, 2003Eamon BradyCatheter
US20030114910 *Dec 18, 2001Jun 19, 2003Juhani Laakso Kari AarneStent delivery apparatus and method
US20030139796 *Nov 11, 2002Jul 24, 2003Jacques SequinEndoprosthesis deployment system for treating vascular bifurcations
US20030212410 *May 8, 2002Nov 13, 2003Stenzel Eric B.Method and device for providing full protection to a stent
US20030220681 *Apr 17, 2003Nov 27, 2003Trivascular, Inc.Delivery system and method for expandable intracorporeal device
US20040172119 *Feb 27, 2003Sep 2, 2004Scimed Life Systems, Inc.Rotating balloon expandable sheath bifurcation delivery
US20040172121 *Sep 8, 2003Sep 2, 2004Tracee EidenschinkRotating balloon expandable sheath bifurcation delivery
US20040204749 *Apr 11, 2003Oct 14, 2004Richard GundersonStent delivery system with securement and deployment accuracy
US20040267346 *Jun 30, 2003Dec 30, 2004Shelso Susan I.Stent grip and system for use therewith
US20040267348 *Apr 9, 2004Dec 30, 2004Gunderson Richard C.Medical device delivery systems
US20050027345 *Feb 17, 2004Feb 3, 2005Steven HoranStent delivery and deployment system
US20050038494 *Aug 15, 2003Feb 17, 2005Scimed Life Systems, Inc.Clutch driven stent delivery system
US20050060016 *Sep 12, 2003Mar 17, 2005Wu Patrick P.Delivery system for medical devices
US20050090890 *Sep 22, 2004Apr 28, 2005Wu Patrick P.Delivery system for medical devices
US20050096724 *Dec 14, 2004May 5, 2005Scimed Life Systems, Inc.Method and device for providing full protection to a stent
US20050149161 *Dec 29, 2003Jul 7, 2005Tracee EidenschinkEdge protection and bifurcated stent delivery system
US20050154441 *Jan 14, 2004Jul 14, 2005Cook IncorporatedIntroducer
US20050154442 *Jan 13, 2004Jul 14, 2005Tracee EidenschinkBifurcated stent delivery system
US20050154443 *Dec 20, 2004Jul 14, 2005Rubicon Medical, Inc.Stent delivery device
US20050182473 *Feb 18, 2004Aug 18, 2005Tracee EidenschinkMulti stent delivery system
US20050183259 *Feb 23, 2004Aug 25, 2005Tracee EidenschinkApparatus and method for crimping a stent assembly
US20050187602 *Feb 24, 2004Aug 25, 2005Tracee EidenschinkRotatable catheter assembly
US20050192606 *Feb 28, 2005Sep 1, 2005Paul Ram H.Jr.Valvulotome with a cutting edge
US20050195789 *Mar 2, 2004Sep 8, 2005Nokia CorporationPreventing an incorrect synchronization between a received code-modulated signal and a replica code
US20050209670 *Mar 2, 2004Sep 22, 2005Cardiomind, Inc.Stent delivery system with diameter adaptive restraint
US20050209671 *Mar 2, 2004Sep 22, 2005Cardiomind, Inc.Corewire actuated delivery system with fixed distal stent-carrying extension
US20050228478 *Apr 7, 2005Oct 13, 2005Heidner Matthew CMedical device delivery systems
US20050240254 *Apr 27, 2004Oct 27, 2005Michael AustinStent delivery system
US20050273149 *Jun 8, 2004Dec 8, 2005Tran Thomas TBifurcated stent delivery system
US20060009833 *Aug 15, 2005Jan 12, 2006Trivascular, Inc.Delivery system and method for bifurcated graft
US20060036309 *Oct 11, 2005Feb 16, 2006Counter Clockwise, Inc.Guidewire loaded stent for delivery through a catheter
US20060058866 *Aug 30, 2005Mar 16, 2006Cully Edward HDeployment system for an expandable device
US20060074477 *Sep 29, 2004Apr 6, 2006Medtronic Vascular, Inc.Self-expanding stent delivery system
US20060085057 *Oct 14, 2004Apr 20, 2006CardiomindDelivery guide member based stent anti-jumping technologies
US20060100685 *May 9, 2005May 11, 2006Jacques SeguinEndoprosthesis for vascular bifurcation
US20060116750 *Jan 19, 2006Jun 1, 2006Counter Clockwise, Inc.Guidewire loaded stent for delivery through a catheter
US20060136037 *Sep 28, 2005Jun 22, 2006Debeer Nicholas CSmall vessel stent designs
US20060155323 *Jan 7, 2005Jul 13, 2006Porter Stephen CIntra-aneurysm devices
US20060184224 *Sep 30, 2003Aug 17, 2006Board Of Regents, The University Of Texas SystemStent delivery system and method of use
US20060224227 *Aug 10, 2005Oct 5, 2006Trivascular. Inc.Delivery system and method for expandable intracorporeal device
US20060229697 *Mar 30, 2005Oct 12, 2006Michael GerdtsCatheter
US20060253184 *May 4, 2005Nov 9, 2006Kurt AmplatzSystem for the controlled delivery of stents and grafts
US20060276886 *Jun 7, 2005Dec 7, 2006Cardiomind, Inc.Ten-thousandths scale metal reinforced stent delivery guide sheath or restraint
US20070027522 *May 22, 2006Feb 1, 2007Chang Jean CStent delivery and guidewire systems
US20070043381 *Aug 18, 2006Feb 22, 2007Icon Medical Corp.Medical device deployment instrument
US20070043420 *Aug 17, 2005Feb 22, 2007Medtronic Vascular, Inc.Apparatus and method for stent-graft release using a cap
US20070055339 *Aug 23, 2005Mar 8, 2007George William RStaged stent delivery systems
US20070055340 *Sep 2, 2005Mar 8, 2007Medtronic Vascular, Inc., A Delaware CorporationStent delivery system with multiple evenly spaced pullwires
US20070055342 *Oct 13, 2006Mar 8, 2007Wu Patrick PDelivery system for medical devices
US20070093886 *Nov 28, 2006Apr 26, 2007Cully Edward HDeployment system for an endoluminal device
US20070118207 *Jan 17, 2007May 24, 2007Aga Medical CorporationSystem for controlled delivery of stents and grafts
US20070203563 *Feb 7, 2007Aug 30, 2007Stephen HebertSystem for delivering a stent
US20070219617 *Mar 17, 2006Sep 20, 2007Sean SaintHandle for Long Self Expanding Stent
US20070225659 *Mar 19, 2007Sep 27, 2007Cook IncorporatedIntroducer sheath having frangible tip
US20070225789 *Mar 22, 2006Sep 27, 2007Kavanagh Joseph TMethod of stenting with minimal diameter guided delivery systems
US20070299500 *Aug 31, 2007Dec 27, 2007Counter Clockwise, Inc.Guidewire loaded stent for delivery through a catheter
US20070299502 *Aug 31, 2007Dec 27, 2007Counter Clockwise, Inc.Guidewire loaded stent for delivery through a catheter
US20080039920 *Aug 8, 2006Feb 14, 2008Medlogics Device CorporationTethered Self-Expanding Stent Delivery System
US20080039928 *Aug 8, 2006Feb 14, 2008Medlogics Device CorporationSlotted Self-Expanding Stent Delivery System
US20080046064 *Jun 22, 2007Feb 21, 2008Jacques SequinEndoprosthesis deployment methods for treating vascular bifurcations
US20080091151 *Oct 12, 2006Apr 17, 2008Fischell Robert EMeans and method for treating an intimal dissection after stent implantation
US20080119923 *Jan 23, 2008May 22, 2008Scimed Life Systems, Inc.Bifurcated stent delivery system
US20080255654 *Mar 21, 2008Oct 16, 2008Bay Street MedicalSystem for delivering a stent
US20080294231 *Jan 30, 2008Nov 27, 2008Boston Scientific Scimed, Inc.Stent Delivery Catheter
US20080300667 *Jun 2, 2008Dec 4, 2008Bay Street MedicalSystem for delivering a stent
US20090024133 *Jul 16, 2007Jan 22, 2009Fionan KeadyDelivery device
US20090024205 *Nov 30, 2007Jan 22, 2009Bay Street MedicalRadially Expandable Stent
US20090105803 *Dec 19, 2008Apr 23, 2009Boston Scientific Scimed, Inc.Stent grip and systems for use therewith
US20090125093 *Nov 6, 2008May 14, 2009William Cook Europe ApsMethod and apparatus for introducing expandable intraluminal prosthesis
US20090171433 *Dec 27, 2007Jul 2, 2009Cook IncorporatedControl handle
US20090210046 *Feb 20, 2008Aug 20, 2009Abbott LaboratoriesHandle assembly for a delivery system
US20090312831 *Jun 10, 2009Dec 17, 2009C. R. Bard, Inc.Catheter delivery device
US20100036472 *Aug 8, 2008Feb 11, 2010Abbott Cardiovascular Systems Inc.Delivery system with variable delivery rate for deploying a medical device
US20100168834 *Dec 29, 2009Jul 1, 2010Wilson-Cook Medical Inc.Delivery Device
US20100191221 *Apr 12, 2010Jul 29, 2010Boston Scientific Scimed, Inc.Rotatable Catheter Assembly
US20100204774 *Feb 3, 2010Aug 12, 2010Boston Scientific Scimed, Inc.Stent delivery catheter
US20100256727 *Jun 22, 2010Oct 7, 2010Boston Scientific Scimed, Inc.Catheter
US20100286719 *May 17, 2010Nov 11, 2010Paul Ram HValvulotome device and method
US20100312325 *Nov 12, 2008Dec 9, 2010C. R. Bard, Inc.Elongate medical device
US20110190865 *Jan 28, 2011Aug 4, 2011Cook Medical Technologies LlcMechanically Expandable Delivery and Dilation Systems
US20110202087 *Apr 25, 2011Aug 18, 2011Salviac LimitedCatheter
US20120065644 *Sep 15, 2010Mar 15, 2012Abbott Cardiovascular Systems, Inc.Stent deployment system with retractable shealth
US20120083869 *Apr 7, 2010Apr 5, 2012C. R. Bard, Inc.Delivery system for a prosthesis
Classifications
U.S. Classification623/1.11
International ClassificationA61F2/06, A61F2/84
Cooperative ClassificationA61F2/95, A61F2002/9517, A61F2/966
European ClassificationA61F2/95, A61F2/966
Legal Events
DateCodeEventDescription
Feb 29, 2000ASAssignment
Owner name: SCIMED LIFE SYSTEMS, INC., MINNESOTA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BROOME, THOMAS E.;REEL/FRAME:010653/0244
Effective date: 19991227
Sep 28, 2005FPAYFee payment
Year of fee payment: 4
Nov 6, 2006ASAssignment
Owner name: BOSTON SCIENTIFIC SCIMED, INC., MINNESOTA
Free format text: CHANGE OF NAME;ASSIGNOR:SCIMED LIFE SYSTEMS, INC.;REEL/FRAME:018505/0868
Effective date: 20050101
Owner name: BOSTON SCIENTIFIC SCIMED, INC.,MINNESOTA
Free format text: CHANGE OF NAME;ASSIGNOR:SCIMED LIFE SYSTEMS, INC.;REEL/FRAME:018505/0868
Effective date: 20050101
Sep 28, 2009FPAYFee payment
Year of fee payment: 8
Oct 23, 2013FPAYFee payment
Year of fee payment: 12